Question

Find the distance between $(8,-8)$ from the origin.

Answer 1

Distance between $(8,-8)$ from the origin

$=$Distance between $(8,-8)$ from $(0,0)$

$=\sqrt{{(x_2-x_1)}^2+{(y_2-y_1)}^2}$

$=\sqrt{{(8-0)}^2+{(-8-0)}^2}$

$=\sqrt{64+64}$

$=\sqrt{2\times 64}=8\sqrt{2}$ units